How to test CT dc offset voltage? Pls advice the circuit configuration to test th CT.
Primary current : 150A
Turns ratio : 1: 2500,
Toroidal version
Primary current : 150A
Turns ratio : 1: 2500,
Toroidal version
The principal effect of dc offset on a current transformer's performance (accuracy, if you will) owes to the magnetic properties of its core material (Spec. 'saturability').How to test CT dc offset voltage? Pls advice the circuit configuration to test th CT.
Primary current : 150A
Turns ratio : 1: 2500,
Toroidal version
Indeed not! Howbeit a DC 'bias' on the primary may effect the transformation parameters (à la saturable reactors)...Suggestion #4
Adjust your volt meter to, "DC".
Place the volt meter leads on the wires exiting the current transformer.
Adjust the voltage range lower and lower until you realize current transformers don't produce any DC voltage.
Oh! I get it...Indeed not! Howbeit a DC 'bias' on the primary may effect the transformation parameters (à la saturable reactors)...
Best regards
HP